gyrfalcon

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gyrfalcon

the most popular bird for hunting by falconry. A large white to gray bird, very discriminating hunter and kills only while in flight. Called also Falco rusticolus.
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Ecology of gyrfalcons, Falco rusticolus, in the central Canadian Arctic: Diet and feeding behavior.
A time-lapse nest study of a pair of gyrfalcons Falco rusticolus from their arrival at the nesting ledge to the completion of egg laying.